Charles Ellicott Commentary Revelation 19:4

"And the four and twenty elders and the four living creatures fell down and worshipped God that sitteth on the throne, saying, Amen; Hallelujah." — Revelation 19:4 (ASV)

And the twenty-four . . .—The twenty-four elders, the representatives of the Church, and the four living beings, the representatives of nature, fell down and worshipped God who sits (not “sat,” as in the English version) on the throne. These, too, join in the chorus of praise.